examples/l2fwd-keepalive/main.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <stdint.h>
  38 #include <inttypes.h>
  39 #include <sys/types.h>
  40 #include <sys/queue.h>
  41 #include <netinet/in.h>
  42 #include <setjmp.h>
  43 #include <stdarg.h>
  44 #include <ctype.h>
  45 #include <errno.h>
  46 #include <getopt.h>
  47
  48 #include <rte_common.h>
  49 #include <rte_log.h>
  50 #include <rte_malloc.h>
  51 #include <rte_memory.h>
  52 #include <rte_memcpy.h>
  53 #include <rte_memzone.h>
  54 #include <rte_eal.h>
  55 #include <rte_per_lcore.h>
  56 #include <rte_launch.h>
  57 #include <rte_atomic.h>
  58 #include <rte_cycles.h>
  59 #include <rte_prefetch.h>
  60 #include <rte_lcore.h>
  61 #include <rte_per_lcore.h>
  62 #include <rte_branch_prediction.h>
  63 #include <rte_interrupts.h>
  64 #include <rte_pci.h>
  65 #include <rte_random.h>
  66 #include <rte_debug.h>
  67 #include <rte_ether.h>
  68 #include <rte_ethdev.h>
  69 #include <rte_ring.h>
  70 #include <rte_mempool.h>
  71 #include <rte_mbuf.h>
  72 #include <rte_timer.h>
  73 #include <rte_keepalive.h>
  74
  75 #define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
  76
  77 #define NB_MBUF   8192
  78
  79 #define MAX_PKT_BURST 32
  80 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
  81
  82 /*
  83  * Configurable number of RX/TX ring descriptors
  84  */
  85 #define RTE_TEST_RX_DESC_DEFAULT 128
  86 #define RTE_TEST_TX_DESC_DEFAULT 512
  87 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  88 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  89
  90 /* ethernet addresses of ports */
  91 static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
  92
  93 /* mask of enabled ports */
  94 static uint32_t l2fwd_enabled_port_mask;
  95
  96 /* list of enabled ports */
  97 static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
  98
  99 static unsigned int l2fwd_rx_queue_per_lcore = 1;
 100
 101 #define MAX_RX_QUEUE_PER_LCORE 16
 102 #define MAX_TX_QUEUE_PER_PORT 16
 103 struct lcore_queue_conf {
 104         unsigned n_rx_port;
 105         unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
 106 } __rte_cache_aligned;
 107 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
 108
 109 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 110
 111 static const struct rte_eth_conf port_conf = {
 112         .rxmode = {
 113                 .split_hdr_size = 0,
 114                 .header_split   = 0, /**< Header Split disabled */
 115                 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
 116                 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
 117                 .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
 118                 .hw_strip_crc   = 0, /**< CRC stripped by hardware */
 119         },
 120         .txmode = {
 121                 .mq_mode = ETH_MQ_TX_NONE,
 122         },
 123 };
 124
 125 struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
 126
 127 /* Per-port statistics struct */
 128 struct l2fwd_port_statistics {
 129         uint64_t tx;
 130         uint64_t rx;
 131         uint64_t dropped;
 132 } __rte_cache_aligned;
 133 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 134
 135 /* A tsc-based timer responsible for triggering statistics printout */
 136 #define TIMER_MILLISECOND 1
 137 #define MAX_TIMER_PERIOD 86400 /* 1 day max */
 138 static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
 139 static int64_t check_period = 5; /* default check cycle is 5ms */
 140
 141 /* Keepalive structure */
 142 struct rte_keepalive *rte_global_keepalive_info;
 143
 144 /* Print out statistics on packets dropped */
 145 static void
 146 print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 147         __attribute__((unused)) void *ptr_data)
 148 {
 149         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 150         unsigned portid;
 151
 152         total_packets_dropped = 0;
 153         total_packets_tx = 0;
 154         total_packets_rx = 0;
 155
 156         const char clr[] = { 27, '[', '2', 'J', '\0' };
 157         const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
 158
 159                 /* Clear screen and move to top left */
 160         printf("%s%s", clr, topLeft);
 161
 162         printf("\nPort statistics ====================================");
 163
 164         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
 165                 /* skip disabled ports */
 166                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 167                         continue;
 168                 printf("\nStatistics for port %u ------------------------------"
 169                            "\nPackets sent: %24"PRIu64
 170                            "\nPackets received: %20"PRIu64
 171                            "\nPackets dropped: %21"PRIu64,
 172                            portid,
 173                            port_statistics[portid].tx,
 174                            port_statistics[portid].rx,
 175                            port_statistics[portid].dropped);
 176
 177                 total_packets_dropped += port_statistics[portid].dropped;
 178                 total_packets_tx += port_statistics[portid].tx;
 179                 total_packets_rx += port_statistics[portid].rx;
 180         }
 181         printf("\nAggregate statistics ==============================="
 182                    "\nTotal packets sent: %18"PRIu64
 183                    "\nTotal packets received: %14"PRIu64
 184                    "\nTotal packets dropped: %15"PRIu64,
 185                    total_packets_tx,
 186                    total_packets_rx,
 187                    total_packets_dropped);
 188         printf("\n====================================================\n");
 189 }
 190
 191 static void
 192 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 193 {
 194         struct ether_hdr *eth;
 195         void *tmp;
 196         int sent;
 197         unsigned dst_port;
 198         struct rte_eth_dev_tx_buffer *buffer;
 199
 200         dst_port = l2fwd_dst_ports[portid];
 201         eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
 202
 203         /* 02:00:00:00:00:xx */
 204         tmp = &eth->d_addr.addr_bytes[0];
 205         *((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
 206
 207         /* src addr */
 208         ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 209
 210         buffer = tx_buffer[dst_port];
 211         sent = rte_eth_tx_buffer(dst_port, 0, buffer, m);
 212         if (sent)
 213                 port_statistics[dst_port].tx += sent;
 214 }
 215
 216 /* main processing loop */
 217 static void
 218 l2fwd_main_loop(void)
 219 {
 220         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 221         struct rte_mbuf *m;
 222         int sent;
 223         unsigned lcore_id;
 224         uint64_t prev_tsc, diff_tsc, cur_tsc;
 225         unsigned i, j, portid, nb_rx;
 226         struct lcore_queue_conf *qconf;
 227         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
 228                 / US_PER_S * BURST_TX_DRAIN_US;
 229         struct rte_eth_dev_tx_buffer *buffer;
 230
 231         prev_tsc = 0;
 232
 233         lcore_id = rte_lcore_id();
 234         qconf = &lcore_queue_conf[lcore_id];
 235
 236         if (qconf->n_rx_port == 0) {
 237                 RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
 238                 return;
 239         }
 240
 241         RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 242
 243         for (i = 0; i < qconf->n_rx_port; i++) {
 244
 245                 portid = qconf->rx_port_list[i];
 246                 RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 247                         portid);
 248         }
 249
 250         uint64_t tsc_initial = rte_rdtsc();
 251         uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
 252
 253         while (1) {
 254                 /* Keepalive heartbeat */
 255                 rte_keepalive_mark_alive(rte_global_keepalive_info);
 256
 257                 cur_tsc = rte_rdtsc();
 258
 259                 /*
 260                  * Die randomly within 7 secs for demo purposes if
 261                  * keepalive enabled
 262                  */
 263                 if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
 264                         break;
 265
 266                 /*
 267                  * TX burst queue drain
 268                  */
 269                 diff_tsc = cur_tsc - prev_tsc;
 270                 if (unlikely(diff_tsc > drain_tsc)) {
 271
 272                         for (i = 0; i < qconf->n_rx_port; i++) {
 273
 274                                 portid = l2fwd_dst_ports[qconf->rx_port_list[i]];
 275                                 buffer = tx_buffer[portid];
 276
 277                                 sent = rte_eth_tx_buffer_flush(portid, 0, buffer);
 278                                 if (sent)
 279                                         port_statistics[portid].tx += sent;
 280
 281                         }
 282
 283                         prev_tsc = cur_tsc;
 284                 }
 285
 286                 /*
 287                  * Read packet from RX queues
 288                  */
 289                 for (i = 0; i < qconf->n_rx_port; i++) {
 290
 291                         portid = qconf->rx_port_list[i];
 292                         nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
 293                                                  pkts_burst, MAX_PKT_BURST);
 294
 295                         port_statistics[portid].rx += nb_rx;
 296
 297                         for (j = 0; j < nb_rx; j++) {
 298                                 m = pkts_burst[j];
 299                                 rte_prefetch0(rte_pktmbuf_mtod(m, void *));
 300                                 l2fwd_simple_forward(m, portid);
 301                         }
 302                 }
 303         }
 304 }
 305
 306 static int
 307 l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
 308 {
 309         l2fwd_main_loop();
 310         return 0;
 311 }
 312
 313 /* display usage */
 314 static void
 315 l2fwd_usage(const char *prgname)
 316 {
 317         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
 318                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
 319                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
 320                "  -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
 321                    "  -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
 322                prgname);
 323 }
 324
 325 static int
 326 l2fwd_parse_portmask(const char *portmask)
 327 {
 328         char *end = NULL;
 329         unsigned long pm;
 330
 331         /* parse hexadecimal string */
 332         pm = strtoul(portmask, &end, 16);
 333         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 334                 return -1;
 335
 336         if (pm == 0)
 337                 return -1;
 338
 339         return pm;
 340 }
 341
 342 static unsigned int
 343 l2fwd_parse_nqueue(const char *q_arg)
 344 {
 345         char *end = NULL;
 346         unsigned long n;
 347
 348         /* parse hexadecimal string */
 349         n = strtoul(q_arg, &end, 10);
 350         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 351                 return 0;
 352         if (n == 0)
 353                 return 0;
 354         if (n >= MAX_RX_QUEUE_PER_LCORE)
 355                 return 0;
 356
 357         return n;
 358 }
 359
 360 static int
 361 l2fwd_parse_timer_period(const char *q_arg)
 362 {
 363         char *end = NULL;
 364         int n;
 365
 366         /* parse number string */
 367         n = strtol(q_arg, &end, 10);
 368         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 369                 return -1;
 370         if (n >= MAX_TIMER_PERIOD)
 371                 return -1;
 372
 373         return n;
 374 }
 375
 376 static int
 377 l2fwd_parse_check_period(const char *q_arg)
 378 {
 379         char *end = NULL;
 380         int n;
 381
 382         /* parse number string */
 383         n = strtol(q_arg, &end, 10);
 384         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
 385                 return -1;
 386         if (n >= MAX_TIMER_PERIOD)
 387                 return -1;
 388
 389         return n;
 390 }
 391
 392 /* Parse the argument given in the command line of the application */
 393 static int
 394 l2fwd_parse_args(int argc, char **argv)
 395 {
 396         int opt, ret;
 397         char **argvopt;
 398         int option_index;
 399         char *prgname = argv[0];
 400         static struct option lgopts[] = {
 401                 {NULL, 0, 0, 0}
 402         };
 403
 404         argvopt = argv;
 405
 406         while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
 407                                   lgopts, &option_index)) != EOF) {
 408
 409                 switch (opt) {
 410                 /* portmask */
 411                 case 'p':
 412                         l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
 413                         if (l2fwd_enabled_port_mask == 0) {
 414                                 printf("invalid portmask\n");
 415                                 l2fwd_usage(prgname);
 416                                 return -1;
 417                         }
 418                         break;
 419
 420                 /* nqueue */
 421                 case 'q':
 422                         l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
 423                         if (l2fwd_rx_queue_per_lcore == 0) {
 424                                 printf("invalid queue number\n");
 425                                 l2fwd_usage(prgname);
 426                                 return -1;
 427                         }
 428                         break;
 429
 430                 /* timer period */
 431                 case 'T':
 432                         timer_period = l2fwd_parse_timer_period(optarg)
 433                                 * (int64_t)(1000 * TIMER_MILLISECOND);
 434                         if (timer_period < 0) {
 435                                 printf("invalid timer period\n");
 436                                 l2fwd_usage(prgname);
 437                                 return -1;
 438                         }
 439                         break;
 440
 441                 /* Check period */
 442                 case 'K':
 443                         check_period = l2fwd_parse_check_period(optarg);
 444                         if (check_period < 0) {
 445                                 printf("invalid check period\n");
 446                                 l2fwd_usage(prgname);
 447                                 return -1;
 448                         }
 449                         break;
 450
 451                 /* long options */
 452                 case 0:
 453                         l2fwd_usage(prgname);
 454                         return -1;
 455
 456                 default:
 457                         l2fwd_usage(prgname);
 458                         return -1;
 459                 }
 460         }
 461
 462         if (optind >= 0)
 463                 argv[optind-1] = prgname;
 464
 465         ret = optind-1;
 466         optind = 0; /* reset getopt lib */
 467         return ret;
 468 }
 469
 470 /* Check the link status of all ports in up to 9s, and print them finally */
 471 static void
 472 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
 473 {
 474 #define CHECK_INTERVAL 100 /* 100ms */
 475 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 476         uint8_t portid, count, all_ports_up, print_flag = 0;
 477         struct rte_eth_link link;
 478
 479         printf("\nChecking link status");
 480         fflush(stdout);
 481         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 482                 all_ports_up = 1;
 483                 for (portid = 0; portid < port_num; portid++) {
 484                         if ((port_mask & (1 << portid)) == 0)
 485                                 continue;
 486                         memset(&link, 0, sizeof(link));
 487                         rte_eth_link_get_nowait(portid, &link);
 488                         /* print link status if flag set */
 489                         if (print_flag == 1) {
 490                                 if (link.link_status)
 491                                         printf("Port %d Link Up - speed %u "
 492                                                 "Mbps - %s\n", (uint8_t)portid,
 493                                                 (unsigned)link.link_speed,
 494                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 495                                         ("full-duplex") : ("half-duplex\n"));
 496                                 else
 497                                         printf("Port %d Link Down\n",
 498                                                 (uint8_t)portid);
 499                                 continue;
 500                         }
 501                         /* clear all_ports_up flag if any link down */
 502                         if (link.link_status == ETH_LINK_DOWN) {
 503                                 all_ports_up = 0;
 504                                 break;
 505                         }
 506                 }
 507                 /* after finally printing all link status, get out */
 508                 if (print_flag == 1)
 509                         break;
 510
 511                 if (all_ports_up == 0) {
 512                         printf(".");
 513                         fflush(stdout);
 514                         rte_delay_ms(CHECK_INTERVAL);
 515                 }
 516
 517                 /* set the print_flag if all ports up or timeout */
 518                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 519                         print_flag = 1;
 520                         printf("done\n");
 521                 }
 522         }
 523 }
 524
 525 static void
 526 dead_core(__attribute__((unused)) void *ptr_data, const int id_core)
 527 {
 528         printf("Dead core %i - restarting..\n", id_core);
 529         if (rte_eal_get_lcore_state(id_core) == FINISHED) {
 530                 rte_eal_wait_lcore(id_core);
 531                 rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
 532         } else {
 533                 printf("..false positive!\n");
 534         }
 535 }
 536
 537 int
 538 main(int argc, char **argv)
 539 {
 540         struct lcore_queue_conf *qconf;
 541         struct rte_eth_dev_info dev_info;
 542         int ret;
 543         uint8_t nb_ports;
 544         uint8_t nb_ports_available;
 545         uint8_t portid, last_port;
 546         unsigned lcore_id, rx_lcore_id;
 547         unsigned nb_ports_in_mask = 0;
 548
 549         /* init EAL */
 550         ret = rte_eal_init(argc, argv);
 551         if (ret < 0)
 552                 rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
 553         argc -= ret;
 554         argv += ret;
 555
 556         l2fwd_enabled_port_mask = 0;
 557
 558         /* parse application arguments (after the EAL ones) */
 559         ret = l2fwd_parse_args(argc, argv);
 560         if (ret < 0)
 561                 rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
 562
 563         /* create the mbuf pool */
 564         l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
 565                 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 566         if (l2fwd_pktmbuf_pool == NULL)
 567                 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
 568
 569         nb_ports = rte_eth_dev_count();
 570         if (nb_ports == 0)
 571                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 572
 573         if (nb_ports > RTE_MAX_ETHPORTS)
 574                 nb_ports = RTE_MAX_ETHPORTS;
 575
 576         /* reset l2fwd_dst_ports */
 577         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
 578                 l2fwd_dst_ports[portid] = 0;
 579         last_port = 0;
 580
 581         /*
 582          * Each logical core is assigned a dedicated TX queue on each port.
 583          */
 584         for (portid = 0; portid < nb_ports; portid++) {
 585                 /* skip ports that are not enabled */
 586                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 587                         continue;
 588
 589                 if (nb_ports_in_mask % 2) {
 590                         l2fwd_dst_ports[portid] = last_port;
 591                         l2fwd_dst_ports[last_port] = portid;
 592                 } else
 593                         last_port = portid;
 594
 595                 nb_ports_in_mask++;
 596
 597                 rte_eth_dev_info_get(portid, &dev_info);
 598         }
 599         if (nb_ports_in_mask % 2) {
 600                 printf("Notice: odd number of ports in portmask.\n");
 601                 l2fwd_dst_ports[last_port] = last_port;
 602         }
 603
 604         rx_lcore_id = 1;
 605         qconf = NULL;
 606
 607         /* Initialize the port/queue configuration of each logical core */
 608         for (portid = 0; portid < nb_ports; portid++) {
 609                 /* skip ports that are not enabled */
 610                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
 611                         continue;
 612
 613                 /* get the lcore_id for this port */
 614                 while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
 615                        lcore_queue_conf[rx_lcore_id].n_rx_port ==
 616                        l2fwd_rx_queue_per_lcore) {
 617                         rx_lcore_id++;
 618                         if (rx_lcore_id >= RTE_MAX_LCORE)
 619                                 rte_exit(EXIT_FAILURE, "Not enough cores\n");
 620                 }
 621
 622                 if (qconf != &lcore_queue_conf[rx_lcore_id])
 623                         /* Assigned a new logical core in the loop above. */
 624                         qconf = &lcore_queue_conf[rx_lcore_id];
 625
 626                 qconf->rx_port_list[qconf->n_rx_port] = portid;
 627                 qconf->n_rx_port++;
 628                 printf("Lcore %u: RX port %u\n",
 629                         rx_lcore_id, (unsigned) portid);
 630         }
 631
 632         nb_ports_available = nb_ports;
 633
 634         /* Initialise each port */
 635         for (portid = 0; portid < nb_ports; portid++) {
 636                 /* skip ports that are not enabled */
 637                 if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
 638                         printf("Skipping disabled port %u\n",
 639                                 (unsigned) portid);
 640                         nb_ports_available--;
 641                         continue;
 642                 }
 643                 /* init port */
 644                 printf("Initializing port %u... ", (unsigned) portid);
 645                 fflush(stdout);
 646                 ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
 647                 if (ret < 0)
 648                         rte_exit(EXIT_FAILURE,
 649                                 "Cannot configure device: err=%d, port=%u\n",
 650                                 ret, (unsigned) portid);
 651
 652                 rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
 653
 654                 /* init one RX queue */
 655                 fflush(stdout);
 656                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 657                                              rte_eth_dev_socket_id(portid),
 658                                              NULL,
 659                                              l2fwd_pktmbuf_pool);
 660                 if (ret < 0)
 661                         rte_exit(EXIT_FAILURE,
 662                                 "rte_eth_rx_queue_setup:err=%d, port=%u\n",
 663                                 ret, (unsigned) portid);
 664
 665                 /* init one TX queue on each port */
 666                 fflush(stdout);
 667                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 668                                 rte_eth_dev_socket_id(portid),
 669                                 NULL);
 670                 if (ret < 0)
 671                         rte_exit(EXIT_FAILURE,
 672                                 "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 673                                 ret, (unsigned) portid);
 674
 675                 /* Initialize TX buffers */
 676                 tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
 677                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
 678                                 rte_eth_dev_socket_id(portid));
 679                 if (tx_buffer[portid] == NULL)
 680                         rte_exit(EXIT_FAILURE, "Cannot allocate buffer for tx on port %u\n",
 681                                         (unsigned) portid);
 682
 683                 rte_eth_tx_buffer_init(tx_buffer[portid], MAX_PKT_BURST);
 684
 685                 ret = rte_eth_tx_buffer_set_err_callback(tx_buffer[portid],
 686                                 rte_eth_tx_buffer_count_callback,
 687                                 &port_statistics[portid].dropped);
 688                 if (ret < 0)
 689                                 rte_exit(EXIT_FAILURE, "Cannot set error callback for "
 690                                                 "tx buffer on port %u\n", (unsigned) portid);
 691
 692                 /* Start device */
 693                 ret = rte_eth_dev_start(portid);
 694                 if (ret < 0)
 695                         rte_exit(EXIT_FAILURE,
 696                                 "rte_eth_dev_start:err=%d, port=%u\n",
 697                                   ret, (unsigned) portid);
 698
 699                 rte_eth_promiscuous_enable(portid);
 700
 701                 printf("Port %u, MAC address: "
 702                         "%02X:%02X:%02X:%02X:%02X:%02X\n\n",
 703                         (unsigned) portid,
 704                         l2fwd_ports_eth_addr[portid].addr_bytes[0],
 705                         l2fwd_ports_eth_addr[portid].addr_bytes[1],
 706                         l2fwd_ports_eth_addr[portid].addr_bytes[2],
 707                         l2fwd_ports_eth_addr[portid].addr_bytes[3],
 708                         l2fwd_ports_eth_addr[portid].addr_bytes[4],
 709                         l2fwd_ports_eth_addr[portid].addr_bytes[5]);
 710
 711                 /* initialize port stats */
 712                 memset(&port_statistics, 0, sizeof(port_statistics));
 713         }
 714
 715         if (!nb_ports_available) {
 716                 rte_exit(EXIT_FAILURE,
 717                         "All available ports are disabled. Please set portmask.\n");
 718         }
 719
 720         check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
 721
 722         struct rte_timer hb_timer, stats_timer;
 723
 724         rte_timer_subsystem_init();
 725         rte_timer_init(&stats_timer);
 726
 727         if (check_period > 0) {
 728                 rte_global_keepalive_info =
 729                         rte_keepalive_create(&dead_core, NULL);
 730                 if (rte_global_keepalive_info == NULL)
 731                         rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
 732                 rte_timer_init(&hb_timer);
 733                 if (rte_timer_reset(&hb_timer,
 734                                 (check_period * rte_get_timer_hz()) / 1000,
 735                                 PERIODICAL,
 736                                 rte_lcore_id(),
 737                                 (void(*)(struct rte_timer*, void*))
 738                                 &rte_keepalive_dispatch_pings,
 739                                 rte_global_keepalive_info
 740                                 ) != 0 )
 741                         rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
 742         }
 743         if (timer_period > 0) {
 744                 if (rte_timer_reset(&stats_timer,
 745                                 (timer_period * rte_get_timer_hz()) / 1000,
 746                                 PERIODICAL,
 747                                 rte_lcore_id(),
 748                                 &print_stats, NULL
 749                                 ) != 0 )
 750                         rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
 751         }
 752         /* launch per-lcore init on every slave lcore */
 753         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 754                 struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
 755
 756                 if (qconf->n_rx_port == 0)
 757                         RTE_LOG(INFO, L2FWD,
 758                                 "lcore %u has nothing to do\n",
 759                                 lcore_id
 760                                 );
 761                 else {
 762                         rte_eal_remote_launch(
 763                                 l2fwd_launch_one_lcore,
 764                                 NULL,
 765                                 lcore_id
 766                                 );
 767                         rte_keepalive_register_core(rte_global_keepalive_info,
 768                                 lcore_id);
 769                 }
 770         }
 771         for (;;) {
 772                 rte_timer_manage();
 773                 rte_delay_ms(5);
 774                 }
 775
 776         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 777                 if (rte_eal_wait_lcore(lcore_id) < 0)
 778                         return -1;
 779         }
 780
 781         return 0;
 782 }